HS-SemiPro: "DoE superomputers run lots of important functions...power consumption is of secondary concern"
Very good point. In fact, the DoE and IBM repeatedly referred to many of those important functions, such as shepherding our nuclear arsenal now that testing is prohibited.
I am sure this is a complex question that IBM and others carefully considered...the answer likely depends on the capacitive load, system architecture, process technology node etc....getting some insight would be great...having a coal plant to power a supercomputer would not be such a great accomplishment in the current green age
Not sure how much power saved with local processors avoiding use of Infiniband, but that was one of the points IBM was crowing about. Anybody out there know Infiniband power consumption for heavy loads?
thank you Colin...I thought that Infiniband was actually pretty power hungry compared to other IO schemes...but I have not looked at this in a while so could you be wrong? anyone can give me mW/bit/Hz number? Kris
No detailed specs yet about power consumption, but IBM will undoubtably try for "green" plus with processors inside the storage units doing some of the heavy lifting, there'll be less power consumed by the Infiniband interconnect.
Good report. Coral sounds like an effort at the next big leap from today's 38 PFlops Tainhe-2 in China to 100Pflops.
Pairing X86 CPUs and GPUs has been a big trend for at least a couple years now. Sounds like IBM has its own twist on that with Power8 and the proprietary Nvidia NVLink on Volta (which I believe is a 2.5-D chip with GPU and memory, right?)
I'm not sure what IBM means underneath the marketing term "data-centric" as far as the actual architecture, but we shall see.